Watch Live
Watch
Watch Episode

Five Steps of Volcanic Rock

These falls are the record of a series of volcanic eruptions that happened in this area.

These falls are the record of a series of volcanic eruptions that happened in this area. So we have five steps in these falls, and you can think of each of those steps, each of these layers as another volcanic eruption.

AIR DATE 10/21/15

NOVA: Can we cool the planet?

Science Lovers Get More NOVA Using TPT Passport!

TPT Passport is the new member benefit for eligible members ($60+ annual) that provides you with extended access to hundreds of episodes of NOVA! If you’re a #PBSNerd and seriously curious about the world and space, this is for YOU!

Learn More About TPT Passport

Videos

Watch even more of your favorite PBS and TPT shows online.

Learn More
About NOVA

PBS’ premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA programs demystify science and technology and highlight the people involved in scientific pursuits.

Visit Nova Website

Broadcast Dates
  • #4821 - Alaskan Dinosaurs |
    Tuesday, Jun 24 at 2pm TPT 2
  • #4903 - Great Mammoth Mystery |
    Wednesday, Jun 25 at 9pm TPT 2
  • #4907 - Dinosaur Apocalypse: The Last Day |
    Wednesday, Jun 25 at 10pm TPT 2
  • #4903 - Great Mammoth Mystery |
    Thursday, Jun 26 at 3am TPT 2
  • #4907 - Dinosaur Apocalypse: The Last Day |
    Thursday, Jun 26 at 4am TPT 2
Other Shows You May Like
See All Shows
  • Alone in the Wilderness
  • Food - Delicious Science
  • The Brain with David Eagleman
  • Big Blue Live
  • The Twinning Reaction
  • Operation Maneater
See All Shows
Watch Your Shows Many Ways

Click over to tpt.org/shows to watch your favorite TPT productions and PBS shows, anytime and anywhere.

Not only will this site work on your laptop or desktop computer, you'll also feel right at home on any modern smartphone or tablet. Stream away...

Other Ways to Watch
Twin Cities PBS

© 2025 Twin Cities Public Television

Top
To Top